The squash you don't have to peel

Makes one full pan in about 35 minutes: dinner tonight and lunch tomorrow, or one big dinner if that is where your appetite lands today. The whole pan holds roughly 125g of protein.

Salt the steak on both sides and leave it on a plate while you deal with the squash.

Cut each squash in half lengthwise, scoop out the seeds with a spoon, and slice it into half-inch half-moons with the skin on. Get a large skillet hot with two tablespoons of olive oil over medium-high heat and lay the pieces in flat, in two batches if they crowd. Four minutes untouched, until the undersides are deep brown. Flip, add the onion, salt everything, four minutes more. A splash of water, a lid for three minutes, then onto a plate.

Wipe the pan, a spoonful of oil, and turn the heat to high. Pat the steak dry and lay it in. Four minutes a side for medium rare, then onto a board to rest for five.

Heat down to medium. Butter and sage into the pan, swirling, until the butter smells nutty and the leaves go crisp, about a minute. Heat off, vinegar in, squash and onion back to catch all of it. Slice the steak thin across the grain and lay it over the top with whatever juice ran onto the board.

Why this works: sirloin is lean and its muscle fibers run long. Slicing across them leaves every piece with short fibers, so a lean steak eats tender in small bites.

The squash keeps 4 days and is good at room temperature. The steak keeps 3 days. Slice the leftovers cold over the squash rather than cooking them a second time.

No recipe, just an order of operations. Spread two rye crispbreads with a tablespoon of cream cheese each, right out to the edges. Drape four ounces of smoked salmon over them in loose folds. Thin cucumber slices, a few rings of red onion if there is one open from the steak, a squeeze of lemon, a lot of black pepper.

Build it right before you eat it. Crispbread starts going soft under the cream cheese within minutes, and the crunch is half the point. Roughly 24g of protein.

A bag of roasted peanuts still in the shell, cracked one at a time. An ounce of the shelled nuts carries about 7g of protein, and opening every single one slows the whole thing down to a pace where you actually taste them.

Where dinner wants rice, cook quinoa instead. Rinse it well first so it does not taste soapy, then treat it like rice: one part to two parts water, covered, about fifteen minutes. A cooked cup carries about 8g of protein against about 4g for long-grain white rice, and it soaks up pan juices the same way.

In the meat case, look for the fully cooked chicken sausages sitting beside the raw ones. They only need color, so three minutes in a hot pan, then sliced into a bowl of beans or a skillet of greens, and a side dish becomes a dinner.

Browning is flavor, and it comes from chemistry. Once the surface of a steak or a slice of squash gets hot and dry enough, its amino acids and sugars start reacting with each other and build a whole range of new flavor compounds. That is the Maillard reaction, and it is why seared beef tastes deep and savory while boiled beef tastes like very little. Water holds it back, because a wet surface stays stuck near boiling until the water is gone. So pat things dry, give the pan real heat, and leave space between the pieces. It is the cheapest seasoning in the kitchen.

For the day this week when the stove is not going to happen: two slices of cinnamon toast, buttered while they are still hot and cut into strips. A tall glass of cold chocolate milk beside it. Sweet, soft and familiar, and the milk brings real protein along with it.